EnglishCan someone please check my answers? *Cross out any prepositional phrase. Underline the subject once and the verb/verb phrase twice. Write Adv. above adverbs. Put infinitives in parenthesis. 1.In the bushes along the road stood an elephant with purple spots in front of his ...
November 4, 2013

MathRearrange equation to isolate for P to use in a calculator please v=e[(1/cos(pi/2sqrt(P/Pcr)))-1] OR e[(sec(pi/2sqrt(P/Pcr)-1]
October 31, 2013

English Compound SubjectsCan someone please check my answers? *Cross out any prepositional phrases. Underline the subject once and the verb/verb phrase twice. 1. Doug and his new bride vacationed in Florida. (subject- Doug, bride verb- vacationed prepositional phrase- in Florida) 2. During the fair, a...
October 27, 2013

English Compound ObjectsCan someone please check my answers? *Cross out any prepositional phrases. Underline the subject once and the verb/verb phrase twice. 1. Mrs. Little stepped into the rain without a hat or an umbrella. (subject- Mrs. Little verb stepped prepositional phrase- into the rain, ...
October 27, 2013

English Imperative SentencesCan someone please check my answers? *Cross out any prepositional phrases. Underline the subject once and the verb/verb phrase twice. 1. Give this tip to the waiter in the checkered shirt. (subject- you verb- give prepositional phrase- to the waiter, in the checkered shirt) 2...
October 27, 2013

English Verb PhrasesCan someone please check my answers please? *Cross out any prepositional phrases. Underline the subject once and the verb/verb phrase twice. 1. The garbage truck has stopped near the corner of Washington Street. (subject truck verb- has stopped prepositional phrase- near the ...
October 27, 2013

English Compound VerbsCould someone please check my answers? *Cross out any prepositional phrases. Underline the subject once and the verb/verb phrase twice. 1. The instructor stood among the students and chatted with them. (subject- instructor verb- stood, chatted prepositional phrase- among the ...
October 27, 2013

English Adverbs10. The other verb is waved. 16. The other verb is hurried. 7. The subject is one and of the players is a prepositional phrase. 9. With us is another prepositional phrase.
October 27, 2013

English AdverbsI'm not really sure about my adverbs in these sentences. Can someone please check them? *Cross out any prepositional phrases. Underline the subject once and the verb/verb phrase twice. Label any adverb- Adv. 1. That small child often falls down on his roller skates. (...
October 27, 2013

EnglishCan someone please check my answers? I'll type the directions above the questions. *Cross out any prepositional phrases. Underline the subject once and the verb/verb phrase twice. Place any infinitive in parenthesis. 1. Marnie's mother and father want to go to New York...
October 27, 2013

Algebra HelpIt's not his problem it's just that I stated the question wrong instead of 24 and 6 minutes, theyre supposed to be 24 and 6 miles
October 25, 2013

Algebra HelpA motorist was to travel from town A to town B, a distance of 80 miles. He traveled the first 24 miles at a certain rate; traffic then increased and for the next 6 miles he averaged 10 miles per hour less than his original speed; then traffic eased up and he traveled the ...
October 25, 2013

AlgebraA motorist was to travel from town A to town B, a distance of 80 miles. He traveled the first 24 minutes at a certain rate; traffic then increased and for the next 6 minutes he averaged 10 miles per hour less than his original speed; then traffic eased up and he traveled the ...
October 24, 2013

EnglishCould someone please check my answers? I'll type the directions above the different types of questions. *Cross out any prepositional phrases. Underline the subject once and the verb twice. 1. Below the sink is the garbage can. (prepositional phrase- below the sink subject...
October 22, 2013

chemNuclide X has decay constant 1.08 h-1. It can decay in 2 branches, to nuclide Y or to nuclide Z: X --> Y, with decay constant 0.43 h-1, and X --> Z, with unknown decay constant. If there are 10 moles of nuclide X at time t = 0, how many moles of each daughter will there ...
October 21, 2013

chemPu-238 is radioactive by alpha-decay (half-life 87.7 y). Each decay releases 5.6 MeV of energy. Pu-238 is sometimes used to power space probes. If all the decay energy can be converted to electric power, what mass of Pu-238 would be required to power a 22 kW space probe for at...
October 16, 2013

ChemistryIf we ignore the small fraction of U-234, natural uranium has a concentration of 99.28 atom% of U-238 and 0.72% U-235. Their half-lives are, respectively, 4.68*109 and 7.038*108 years. (a) In the future, will the U-238 percentage be higher or lower? (b) In Oklo, Gabon, Africa...
October 15, 2013

ChemistryPu-238 is radioactive by alpha-decay (half-life 87.7 y). Each decay releases 5.6 MeV of energy. Pu-238 is sometimes used to power space probes. If all the decay energy can be converted to electric power, what mass of Pu-238 would be required to power a 22 kW space probe for at...
October 15, 2013

ChemistryThe isotopic abundance of naturally occurring hydrogen is as follows: 1H 99.985 atom % 2H 0.015 atom% When H2 gas is formed from naturally occurring hydrogen, what percentages of the molecules have molecular weights of approximately 2, 3 and 4?
October 1, 2013

AlgebraTwo persons, A and B, together have $6 less than a third person, C. If B gives $5 to A, then A will have half as much money as c does. If A gives $5 to B, then A will have one third of what c has. How many dollars has each?
September 29, 2013

Elementary mechanicsGiven that the mass and radius of jupiter are respectively 190000000kg 7150000km.Calculate the escape velocity from the surface of the planet(a)11.2 km/s(b)33.3km/s(c)59.5km/s(d)110.4km/s
July 15, 2013

Elementary mechanicswhat is common to the variation in the range and the hieght of a projectile. I'm thinking of horizontal acceleration pls what do u think
July 15, 2013

Elementary mechanicsA force of 2i+7jN acts on a body of mass 5kg for 10 seconds. The body was initally moving with constant velocity of i-2jm/s.Find the final velocity of the body in m/s, in vector form. (a)5i+12j(b)12i-5j(c)10i-7j(d)7i+10j
July 14, 2013

ChemistryFor the cell diagram Pt(s)|H2(g)|H+(aq)||Cu2+(aq)|Cu(s) Write a balanced equation for the half-reaction at the cathode. The cathode is the site of reduction so copper gets reduced. So wouldn't the answer be: Cu2+(aq) -> Cu(s) + 2e-?
June 11, 2013

statisticsa study found 37% of a new technique resulted in pregnancy and in that technique 25% resulted in multiple births what is the probabilty that the new technique produced a pregnacy and multiple births what is probability that a random selected pregnancy did not produce multiple ...
June 6, 2013

calculus 2Test the series for convergence/divergence. The Summation from n=1 to infinity of: 1*3*5...(2n-1)/(2*5*8...(3n-1) I'm not sure what to do with the extra terms on the left.
June 5, 2013

Science (2nd Try)To determine the boing point of a liquid, a student heats 10 mL of the liquid in a test tube and records the temperature every minute for 20 minutes. In this example, time is the what? The choices are: Independent variable dependent variable hypothesis control Is it dependent ...
May 23, 2013

ScienceTo determine the boing point of a liquid, a student heats 10 mL of the liquid in a test tube and records the temperature every minute for 20 minutes. In this example, time is the what? The choices are: Independent variable dependent variable hypothesis control Is it dependent ...
May 22, 2013

MathThe scooter does 40km to a litre of petrol. If I use 7.25l how far did the scooter travel
May 21, 2013

PhysicsA circular plate of radius 0.5 m is placed perpendicular to the direction of the magnetic field of 0.5 Tesla. What is the change of flux in the plate if it rotates and its plane becomes parallel to the direction of the magnetic field?
May 17, 2013

math (2nd Try)A salesman gets paid on commission, and his commission is based on how many units he sells during the month. If the salesman sells $1500 worth of units or less, he makes a flat commission of $900 plus 10% of the sale. If he sells more than $1500 worth of units, he makes an ...
May 13, 2013

mathNew photo imaging techniques on computers allow artists to distort an image from its original shape. Figure 1 is a square image (X x X). Figure 2 is stretched 4 units wider and shrunk 4 units shorter than figure 1. (x+4)(X-4). How many square units greater is the area of ...
May 10, 2013

mathA ball is kicked from ground level into the air. Its height, y, in feet after x seconds can be represented by the equation y=40x - 16x^2. What is the total elapsed time, in seconds, from the time the ball is kicked until it reaches ground level again? I used the quadratic ...
May 10, 2013

mathWhat is the result when correctly solving the formula for the variable w when the formula for the perimeter P of a rectangle is P=2l + 2w? Is it w = (p-2l)/2 If not, please explain. Thanks
May 10, 2013

mathUrsula spent a total of $52.34 on two new outfits. She bought two shirt for $12.99, a pair of pants for $18.50, and a skirt. If the sales tax was 7.5%, what was the cost of the skirt? Please solve and exlain. Thanks
May 10, 2013

mathA salesman gets paid on commission, and his commission is based on how many units he sells during the month. If the salesman sells $1500 worth of units or less, he makes a flat commission of $900 plus 10% of the sale. If he sells more than $1500 worth of units, he makes an ...
May 10, 2013

Alg 1The formula for the perimeter P of a rectangle is P=2l +2w. What is the result when correctly solving the formula for the variable w?
May 9, 2013

Alg 1Issa is driving to the airport to catch a flight to miami, and her arrival depoends on traffic. If the traffic is light, then she can drive 60 mph and arrive at the airport 1 hour early. If traffic is heavy, she can drive 35 mph and arrive at the airport on time. The equation ...
May 9, 2013

Algebra 1Emily rows six miles downstream in 1 hour and her friend Ashley,rowing 1 mile per hour faster,completes the return trip in 2 hours. 1.Find the speed of the current(c) and each girls rowing speed. 2.If Emily and Ashley were rowing separately,who would complete their trip first ...
May 7, 2013

Physicsa magnetic rail gun is constucted to give a space vehicle its intial launch velocity, thereby reducing the amount of fuel the vehicle has to carry. it consist of two very long parallel rails across which is positioned a large current carrying crossbar 7.65 m long. The crossbar...
May 4, 2013

mathAlyssa is enrolled in a public-speaking class. Each week she is required to give a speech of greater length than the speech she gave the week before. The table below show the length of several of her speeches: WK #/Length of Speech (seconds) 3/150, 4/180, 5/210, 6/240 If this ...
April 29, 2013

Alg 1Diana is driving 182 miles to Orlando for a math convention. She has already driven x miles of th trip. If Diana drives below 70 miles per hour for the remainder of th trip, which inequality best represents the amount of time in hours, t, that is will take her to complete the ...
April 29, 2013

MathMs Perez owns 2 properties in different towns. The 1st property is assessed at $125,000 and has a tax rate of $6.35 per 1000 dollars. The 2nd property has the same assessed value, but is taxed at the rate of $0.00587 per dollar. Derive the solution to the total tax obligation ...
April 19, 2013

ProbabilityIf 5 juniors and 4 seniors apply for a job at a school which has 2 openings, what is the probability that 1 junior and 1 senior will be randomly chosen for the job.
April 19, 2013

Alg 1Landon is standing in a hole that is 6.5 ft deep. He throws a rock and it goes up into the air, out of the hole, and then lands on the ground above. The path of the rock can be modeled by the equation y = -0.005x^2 + 0.45x - 6.5, where x is the horizontal distance of the rock...
April 16, 2013

alg 1Thanks Steve, you are always so helpful. There was no error data. The only thing I did not type from the problem was: (The measurements are accurate to the nearest inch). This was typed over the answer choices.
April 16, 2013

Alg 1What are the approximate solutions of 2x^2 -x + 10 = 0 In working this, I came up with a negative (-79) under the radical sign. Can I take the sq rt of a negative? my choices are: -2, 2.5 -1.97, 2.47 -2.5, 2 No solution I think it is no solution. Is this correct? If not, ...
April 15, 2013

Alg 1Reasoning: The equation 3x^2 + bx + 3 = 0 has one real solution. What must be true about b? I think it is: b must be the same as -4(a)(c). What are your thoughts?
April 15, 2013

Alg 1The equation is: -w^2 +75w - 1200 the neg sign was so close to the = sign above. Sorry about that.
April 15, 2013

Alg 1The quadratic formula and the discriminat. The daily production of a company is modeled by the function p=-w^2 + 75w - 1200. The daily production, p, is dependent on the number of workers w, present. If the break-even point is when p=0, what are the least and greatest number ...
April 15, 2013

Alg 1A box shaped like a rectangular prism has a height of 17 in. and a volume of 2720 in^3. The length is 4 inches greater than twice the width. What is the width of the box? Please solve and explain what I need to do. The choices are: -10 8 20 40
April 14, 2013

Alg 1The rectangular has an area of 5400 cm^2. What is the value of w? 5400 = (w)(2w - 30) 5400 = 2w^2 - 30 w 5400 = 2w(w - 15) Now I am stuck. My choices are: -45 cm 45 cm 60 cm 90 cm What do I need to do next to get the correct answer? Thanks.
April 14, 2013

Alg 1Completing the square: Which of the following is a solution x^2 + 14x + 112 = 0? If necessary round to the nearest hundredth. x= -0.24 x= -4.24 x= 4.24 no solution I worked it and got neither of the answers. I got x= 0.9 and x=-14.9. Where did I go wrong? Thanks
April 14, 2013

Alg 1Completing the square: Find the value of c such that each expression is a perfect-square trinomial. p^2 - 11p + c Is the answer 30.25? If not, please explain. Thanks
April 13, 2013